{"id":129515,"key":"Open-source_three-dimensional_IoT_anemometer_for_indoor_air_quality_monitoring","title":"Open-source three-dimensional IoT anemometer for indoor air quality monitoring","latest":{"id":1246465,"timestamp":"2026-05-07T09:54:32Z"},"content_model":"wikitext","license":{"url":"https://www.appropedia.org/Appropedia:Copyrights","title":"CC-BY-SA-4.0"},"source":"{{FAST notice}}\n\n[[File:Ga-indoor-air.jpg|thumb]]\n\n{{Publication data\n| type = Paper\n| cite-as = Elizabeth Ospina-Rojas, Juan Botero-Valencia, Daniel Betancur-Vasquez, Joshua M. Pearce, Open-source three-dimensional IoT anemometer for indoor air quality monitoring, ''HardwareX'', 2025, 23, e00656, ISSN 2468-0672, https://doi.org/10.1016/j.ohx.2025.e00656. [https://www.academia.edu/129890592/Open_source_three_dimensional_IoT_anemometer_for_indoor_air_quality_monitoring Academia OA]\n}}\n\n{{Project data\n| authors = Elizabeth Ospina-Rojas, Juan Botero-Valencia, Daniel Betancur-Vasquez, User:J.M.Pearce\n| location = London, Ontario, Canada; Envigado, Colombia\n| status = Designed, Modelled, Prototyped, Verified\n| made = Yes\n| replicated = No\n| years = 2025\n| instance of = open source electronics\n| uses = Arduino\n}}\n\nVentilation in an enclosed space can significantly influence people’s comfort, health, and safety. Poor ventilation can generate temperatures dangerous to health or obstruct the dispersion of environmental pollutants, such as toxic gases or pollution. Measuring indoor environmental conditions can help improve the quality of the environment and protect people’s health and comfort. This work proposes the design of an open-source anemometer to measure wind speed and direction in three dimensions. The purpose of this anemometer is to monitor wind conditions in enclosed spaces and environmental conditions related to air quality and temperature. The prototype uses an array of six unidirectional flow sensors, each pointing towards a different axis. Carbon dioxide (CO), Volatile Organic Compounds (VOC), temperature, humidity, pressure, and gas presence sensors are integrated to monitor indoor environmental conditions accurately. Measuring the vertical component of the wind provides more detailed information on wind conditions. Test results show that the device can detect variations in wind speed with a deviation of 0.25 m/s, detect changes in horizontal wind direction with a deviation of 3.7°, and detect vertical wind direction variations with a deviation of 3.02°. These measurements demonstrate that the proposed device is capable of detecting wind changes in three dimensions, validating its potential for detailed indoor airflow monitoring.\n\n{| class=\"wikitable\"\n! Hardware name\n! Three-dimensional anemometer for indoor air quality monitoring\n|-\n| Subject areas\n|\n* Engineering\n* Instrumentation\n* Anemometry\n* Air quality monitoring\n* Internet of things\n\n|-\n| Hardware types\n|\n* Measuring physical properties and in-lab sensors\n* Field measurements and sensors\n* Electrical engineering and computer science\n\n|-\n| Open source license\n| Creative Commons Attribution-ShareAlike license\n|-\n| Cost of hardware\n| $522.26\n|-\n| Source file repository\n| https://doi.org/10.17605/OSF.IO/MZCTP\n|}\n\n{{Pearce publications notice}}\n\n[[File:Anemometer assembly.png|500px]]\n\n== Keywords ==\n\n Three-dimensional anemometer, Thermal anemometer, Wind speed, Wind direction, IoT, sensors, Indoor air quality, Open hardware, Air pollution, Arduino, Measuring station, Internet of Things, environmental variables, low cost, 3-D printing, open hardware, environmental monitoring, sensing, environmental sensing, additive manufacturing\n\n== See also ==\n\n* [[Low-cost air, noise, and light pollution measuring station with wireless communication and tinyML]]\n* [[Design of a low-cost mobile multispectral albedometer with geopositioning and absolute orientation]]\n* [[Design and Implementation of 3-D Printed Radiation Shields for Environmental Sensors]]\n* [[Low cost climate station for smart agriculture applications with photovoltaic energy and wireless communication]]\n* [[Installation of a variable-angle spectrometer system for monitoring diffuse and global solar radiation]]\n* [[Low-cost embedded system for spectral power distribution reconstruction for controlled environmental agriculture using a multispectral sensor and cloud-based deep learning]]\n\n{{Page data\n| title-tag = Open-source three-dimensional IoT anemometer for indoor air quality monitoring\n| part-of = FAST Completed\n| keywords = Three-dimensional anemometer, Thermal anemometer, Wind speed, Wind direction, IoT, sensors, Indoor air quality, Open hardware, Air pollution, Arduino, Measuring station, Internet of Things, environmental variables, low cost, 3-D printing, open hardware, environmental monitoring, sensing, environmental sensing, additive manufacturing\n| sdg = SDG09 Industry innovation and infrastructure\n| published = 2025\n| organizations = Free Appropriate Sustainable Technology, Western, Instituto Tecnológico Metropolitano\n| license = CC-BY-SA-4.0\n| language = en\n| description = A 3D IoT anemometer tracks indoor airflow affordably. Appropedia covers sensors, prints, and how data guides comfort.\n}}\n\n[[Category:Air pollution]]\n[[Category:Open hardware]]\n[[Category:Environmental monitoring]]"}